A kindly but desperate Alsatian innkeeper named Mathias murders and robs a rich Jewish merchant staying at his inn, but the ghost of his victim will not let him rest. Meanwhile, a mysterious Mesmerist has come to town, claiming he has made many criminals confess their crimes...
Peace River Parker, foreman of the Cross L Ranch and engaged to Jess, the daughter of the owner, is railroaded into a prison term by the false witness of Jefferson Crane, who covets the ranch and Jess. Through the complicity of Clell Danert, a villainous foreman who also desires Jess, Crane arranges to ruin the Marshall ranch by driving a herd of sheep onto the cattle range.
A group steals a death ray in order to terrorise the world into peace. The inventor and his daughter try to retrieve the death ray with the aid of a government agent.
A short melodrama. A girl is held hostage in an Indian village, but is rescued by Tom, after which they are chased by Indians. The Indian girl Blue Wing is also in love with Tom, but she puts a stop to the chase when she sees how strong the love between Tom and the girl actually is.
The City of Stars is structured as a "coming attractions" promo within the fictional framework of an Eastern editor (vaudeville actor Broderick O'Farrell) arriving in Los Angeles to meet with Universal's advertising manager. The sceneic resources of the studio are showcased throughout, with a "See America First" wagon visible in one scene, and a scattering of panoramic shots of Universal City and the Universal zoo.